Goal ZERO LAG

[passione motori]

Munro and I have no doubt about what you write, I just wanted to tell you that the mod that tries Asdone not ? so exasperated...

[asdone]

I don't want a mod exasperated, but I wanted to learn more? possible so I'm glad to exchange opinions!
The values in the map I confirm what was said by munro, that is, that at the time of release the vgt tends to stay open, and then to try to keep up the pressure, should I try to leave completely open the vgt also with 0 diesel (with the consequent risk of spikes).
C'? some special logic to be adopted in the map to avoid the spikes without sacrificing speed? rise of the pressure?

[munro]

attacks the diagnosis and make a log, or mount a pressure gauge turbo and realize for yourself at what rpm do you feel it a p? slower to give you pressure....only in that way you can figure out where to actually act.....know for? that is what you are looking for you ? a "sophistication" that requires a lot of time in tests....you could try starting to increase slightly the n75 duty cycle exactly where and the bottom to try to keep slightly more closed the vgt in such a way as not to slow down the turbine...if you're still not satisfied with the results, you may try to intervene on the pid control going to increase the intervention time by tapping the factor The controls mentioned....when going to close too the vgt is likely to have all of the contraindications that I wrote before...
repeat this for? are tests that require countless attempts.....

[checchitotiralaleva]

I would be a little afraid to touch the gains of the PID controller of the boost control. Even without touching the nervous P proportional... there might be the risk of incurring instability? of the control. With a VGT available to me it would seem rather a good idea to raise the map of the boost to the partial points of departure of the transient). To make it start loading.

I would also add not to overlook the introduction of the diesel engine is not ? of all a slave to the air flow as the gas, in fact, has the chance? to work with the lambda variables, then the price of some sfumazzata, therefore, could be to speed up the transient even relaxing, for example, the map smoke (decrease map of the lambda minimum).
In addition, pi? diesel = pi? energy to the turbo = the ascent of the boost more? quick...

Ciaooo

[asdone]

For? you may only change the speed? intervention, which would increase the boost maps by limiting the peaks. Or am I wrong? Someone of you has already? tried it this way?

[checchitotiralaleva]

To increase the speed? intervention you have to upset the control of the boost, and then act on the parameters of the control... if I remember well so much more? a control ? responsive (hard in the analogy, the mass-spring-damper) so much more? ? pi? ? easily cause oscillations...

[asdone]

I understood, in the case of oscillations I guess you're talking about fractions of a second, hardly I could record them with a log, but I notice from the disbursement. Let? some test and I'll know how it behaves!

[checchitotiralaleva]

and in general, the frequency of the oscillations of the boost that you may have, they are relatives of the frequency of the discharges, which for a 4-cylinder engine should be: rpm * 2 / 60 [Hz]
Hello
let us know!

[Exelion1986]

is the formula ? correct
a motor cycle occurs every two revolutions of the shaft in a 4-stroke, cio? 4 pi radians
being a 4-cylinder is a discharge every 4 pi/4 cio? every pi radians
the conversion between rpm and rad/s ?: rad/s = 2*pi*rpm/60
then the frequency ? f = rad/s / pi rad = 2*rpm/60 [1/s] the cio? [Hz]

[munro]

and grace as aplicate the calculation of the frequency on a pid control??